SOLUTION: approximate to the nearest tenth the real root of the equation f(x)=x^3-4=0. im not sure how to do this. please help thanks

Algebra ->  Rational-functions -> SOLUTION: approximate to the nearest tenth the real root of the equation f(x)=x^3-4=0. im not sure how to do this. please help thanks      Log On


   

Question 281479: approximate to the nearest tenth the real root of the equation f(x)=x^3-4=0. im not sure how to do this. please help thanks
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for x:
x%5E3-4+=+0 Add 4 to both sides.
x%5E3+=+4 Take the cube root of both sides.
x+=+1.587 Round to the nearest tenth.
highlight%28x+=+1.6%29